CN103792188A - Water quality monitoring device for oilfield reinjection water - Google Patents
Water quality monitoring device for oilfield reinjection water Download PDFInfo
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- CN103792188A CN103792188A CN201410019349.XA CN201410019349A CN103792188A CN 103792188 A CN103792188 A CN 103792188A CN 201410019349 A CN201410019349 A CN 201410019349A CN 103792188 A CN103792188 A CN 103792188A
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Abstract
The invention provides a water quality monitoring device for oilfield reinjection water. The water quality monitoring device comprises an oil in water detector, a suspended solid detector and a water quality monitoring center controller, wherein the oil in water detector comprises a laser light source, an emitting optical fiber, a receiving optical fiber and a fluorescence detector, wherein the laser light source is connected with the emitting optical fiber, the receiving optical fiber is connected with the fluorescence detector, the emitting optical fiber comprises an infrared light source and a scattered light detector, and the fluorescence detector and the scattered light detector are connected to the water quality monitoring center controller through telecommunication lines. According to the water quality monitoring device provided by the invention, oil in water is detected by a fluorescence detection method, an infrared light scattering device is used for detecting the turbidity, so that contact does not exist between detection equipment and water, pollution to the detection equipment is avoided, and the water quality monitoring device is wide in range of measurement and good in degree of linearity.
Description
Technical field
The present invention relates to water quality inspection technique field, be specifically related to a kind of water monitoring device of oil field reinjection water.
Background technology
The turbidity of water is commonly called as the turbidity of water, refers to because the existence of insoluble substance in water causes measuring of liquid transparency reduction.
Oil recovery factory's extraction crude oil is after processed, in water, contain the suspensions such as a certain amount of oil, sulfide, along with after oil-field development enters the intermediary and later stages, sand pressure declines very large, maintain the important means of sand pressure by water flood recovery, and no matter be to outer row or re-injection after produced water disposal, if the water quality pollution that will cause surface drainage system or lithic drainage not up to standard, break the balance of water system itself, cause the water pollution event of unrepairable.
In prior art, adopt water monitoring device automatically to detect oil reinjection water for oil recovery factory, oil pollutant leaks or is discharged in natural water, will cause the pollution of water body, and seriously threaten the health of people's health.Checkout equipment for water quality need to contact with water quality, just can measure, and checkout equipment uses for a long time in water quality, easily causes the pollution of equipment and instrument, causes the precision of measurement inaccurate.
Summary of the invention
The invention provides a kind of water monitoring device of oil field reinjection water, the checkout equipment that solves above-mentioned technology existence contacts checkout equipment is polluted to the problem that affects accuracy of detection with water quality.
For achieving the above object, the present invention by the following technical solutions: a kind of water monitoring device of oil field reinjection water, comprising: oily detecting device, suspension detecting device and water quality monitoring central control unit in water; In described water, oily detecting device comprises LASER Light Source, launching fiber, reception optical fiber and fluorescence detector; Described LASER Light Source is connected with launching fiber, and described reception optical fiber is connected with fluorescence detector, and described suspension pick-up unit comprises infrared light supply and light scattering detector; Described fluorescence detector and light scattering detector are connected on water quality monitoring central control unit by communication line.
Further, described optical maser wavelength is 360nm.
Further, described infrared light supply adopts the light source that wavelength is 860nm.
Further, the angle between described infrared light supply incident light axis and scattered light optical axis is 90 °.
Advantage of the present invention is: the water monitoring device that the invention provides a kind of oil field reinjection water, be according to arene compound in oil and products thereof and absorbed the concentration of the fluorescence intensity quantitative test oil of launching after ultraviolet light containing conjugated double bond compound by fluorescence spectrophotometry, this method sensitivity is higher.By suspension detecting device, the suspension turbidity of water quality is detected, in water of the present invention, oily detecting device and turbidity detecting device and water quality to be detected are non-contacting, have avoided the pollution to checkout equipment, and its measurement range is wide, the linearity good.
Accompanying drawing explanation
Fig. 1 is the water monitoring device schematic diagram of oil field reinjection water of the present invention.
Embodiment
Fig. 1 is the water monitoring device schematic diagram of oil field reinjection water of the present invention.
Shown in Figure 1, a kind of water monitoring device of oil field reinjection water, comprising: oily detecting device, suspension detecting device and water quality monitoring central control unit in water; In described water, oily detecting device comprises LASER Light Source, launching fiber, reception optical fiber and fluorescence detector; Described LASER Light Source is connected with launching fiber, and described reception optical fiber is connected with fluorescence detector, and described suspension pick-up unit comprises infrared light supply and light scattering detector; Described fluorescence detector and light scattering detector are connected on water quality monitoring central control unit by communication line.
Described LASER Light Source is mapped in water quality to be detected illumination by launching fiber, aromatic hydrocarbon in water quality is generation fluorescence under the exciting of ultraviolet light, by accepting optical fiber, fluorescence is scanned, the fluorescence information of detection is sent in fluorescence detector and is analyzed, send to water quality monitoring central control unit by the analysis result of communication network fluorescence detector.
The incident light that described infrared light supply sends arrives the surface of water quality to be detected, is sent to light scattering detector, described light scattering detector receiving scattered light through the scattered light of the surface reflection of water quality to be detected.
In the embodiment of the present invention, employing be surface scattering formula detection method, the measurement of surface scattering method occurs in the scattered light intensity of the nearly superficial layer of water layer, carrys out the size of analyzing and testing water sample turbidity by detecting the size of scattered light intensity, obtains turbidity value.
The invention provides a kind of water monitoring device of oil field reinjection water, be according to arene compound in oil and products thereof and absorbed the concentration of the fluorescence intensity quantitative test oil of launching after ultraviolet light containing conjugated double bond compound by fluorescence spectrophotometry, this method sensitivity is higher.By suspension detecting device, the suspension turbidity of water quality is detected, in water of the present invention, oily detecting device and turbidity detecting device and water quality to be detected are non-contacting, have avoided the pollution to checkout equipment, and its measurement range is wide, the linearity good.
Further, described optical maser wavelength is 360nm.
Further, described infrared light supply adopts the light source that wavelength is 860nm.
The embodiment of the present invention is used the infrared light that wavelength is 860nm, and because the light of 860nm wavelength only has the blue faint absorption that has, the uptake of light is small, has reduced measurements interference.
Further, the angle between described infrared light supply incident light axis and scattered light optical axis is 90 °.
In the embodiment of the present invention, be 90 ° by the angle between infrared light supply incident light axis and scattered light optical axis, can reduce the impact of parasitic light.
Claims (4)
1. a water monitoring device for oil field reinjection water, comprising: oily detecting device, suspension detecting device and water quality monitoring central control unit in water; In described water, oily detecting device comprises LASER Light Source, launching fiber, reception optical fiber and fluorescence detector; Described LASER Light Source is connected with launching fiber, and described reception optical fiber is connected with fluorescence detector, and described suspension pick-up unit comprises infrared light supply and light scattering detector; Described fluorescence detector and light scattering detector are connected on water quality monitoring central control unit by communication line.
2. the water monitoring device of a kind of oil field reinjection water according to claim 1, is characterized in that: described optical maser wavelength is 360nm.
3. the water monitoring device of a kind of oil field reinjection water according to claim 1, is characterized in that: described infrared light supply adopts the light source that wavelength is 860nm.
4. the water monitoring device of a kind of oil field reinjection water according to claim 1, is characterized in that: the angle between described infrared light supply incident light axis and scattered light optical axis is 90 °.
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| CN201410019349.XA CN103792188A (en) | 2014-01-16 | 2014-01-16 | Water quality monitoring device for oilfield reinjection water |
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| CN201410019349.XA CN103792188A (en) | 2014-01-16 | 2014-01-16 | Water quality monitoring device for oilfield reinjection water |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891073A (en) * | 2016-04-05 | 2016-08-24 | 西安西热电站化学科技有限公司 | Online detection device and method for iron content in thermodynamic system start washing water |
| CN106610415A (en) * | 2016-12-28 | 2017-05-03 | 安徽壹诺环境工程有限公司 | Soil and underground water monitoring system and method |
| CN108351304A (en) * | 2016-05-19 | 2018-07-31 | 富士电机株式会社 | Water Test Kits |
| CN108956465A (en) * | 2018-07-27 | 2018-12-07 | 天津大学 | A kind of plug in construction for oil field reinjection water on-line monitoring |
| CN109425562A (en) * | 2017-08-22 | 2019-03-05 | 中国科学院长春光学精密机械与物理研究所 | A kind of laser particle analyzer and its application for oil field reinjection water suspended matter partial size on-line monitoring |
| CN109944575A (en) * | 2019-03-29 | 2019-06-28 | 中国石油大学(华东) | A kind of oilfields in high water cut period injection water quality decision-making technique based on water quality sensibility |
| CN113341711A (en) * | 2021-05-24 | 2021-09-03 | 天津大学 | Intelligent circulation distribution control system for earth surface and underground multiple water sources |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891073A (en) * | 2016-04-05 | 2016-08-24 | 西安西热电站化学科技有限公司 | Online detection device and method for iron content in thermodynamic system start washing water |
| CN108351304A (en) * | 2016-05-19 | 2018-07-31 | 富士电机株式会社 | Water Test Kits |
| CN106610415A (en) * | 2016-12-28 | 2017-05-03 | 安徽壹诺环境工程有限公司 | Soil and underground water monitoring system and method |
| CN109425562A (en) * | 2017-08-22 | 2019-03-05 | 中国科学院长春光学精密机械与物理研究所 | A kind of laser particle analyzer and its application for oil field reinjection water suspended matter partial size on-line monitoring |
| CN108956465A (en) * | 2018-07-27 | 2018-12-07 | 天津大学 | A kind of plug in construction for oil field reinjection water on-line monitoring |
| CN108956465B (en) * | 2018-07-27 | 2024-07-12 | 天津大学 | Plug-in structure for on-line monitoring of oilfield reinjection water |
| CN109944575A (en) * | 2019-03-29 | 2019-06-28 | 中国石油大学(华东) | A kind of oilfields in high water cut period injection water quality decision-making technique based on water quality sensibility |
| CN113341711A (en) * | 2021-05-24 | 2021-09-03 | 天津大学 | Intelligent circulation distribution control system for earth surface and underground multiple water sources |
| CN113341711B (en) * | 2021-05-24 | 2023-09-12 | 天津大学 | Intelligent circulation distribution control system for multiple water sources on earth surface and underground |
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Application publication date: 20140514 |